Bobby Castillo vs. Sam Frock — Career Comparison

Sam Frock built a career as a starting pitcher and Bobby Castillo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sam Frock posted stronger surface numbers — ERA 3.23 and WHIP 1.344 compared to 3.94 and 1.431 for Bobby Castillo. By the career numbers, Sam Frock had the better of this cross-role comparison — though era context would sharpen the verdict.